Home >Database >Mysql Tutorial >How Can I Handle SQL Column Names That Conflict with Keywords?
Resolving Conflicts Between SQL Column Names and Keywords
SQL column names sometimes clash with reserved keywords, creating query issues. This article addresses a scenario where a column is named "from," demonstrating effective workarounds since renaming isn't feasible.
Method 1: Using Brackets
The simplest solution is to enclose the conflicting column name in square brackets. This clearly separates it from the SQL keyword:
<code class="language-sql">SELECT [from] FROM TableName;</code>
The brackets explicitly define "from" as a column, not a keyword.
Method 2: Table Qualification
Especially useful with multiple tables, table qualification adds the table name before the column name:
<code class="language-sql">SELECT table.[from] FROM table;</code>
This clarifies that "from" belongs to the "table" table, preventing misinterpretation.
Why This Matters
These methods are crucial to avoid SQL Server misinterpreting column names as keywords, leading to errors. Always use these techniques when column names conflict with keywords to ensure query accuracy.
The above is the detailed content of How Can I Handle SQL Column Names That Conflict with Keywords?. For more information, please follow other related articles on the PHP Chinese website!